A heart murmur is a distortion of the heartbeat due to blood flowing back through a valve that should be closed.If the heart sound is lub-dub-ssshhh,the most likely cause is a failure of the
A)atrioventricular valves.
B)semilunar valves.
C)mitral (bicuspid)valve.
D)AV node to signal contraction.
E)sinoatrial node to signal contraction.

Question

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The Answer of A heart murmur is a distortion of the heartbeat due to blood flowing back through a valve that should be closed.If the heart sound is lub-dub-ssshhh,the most likely cause is a failure of the
A)atrioventricular valves.
B)semilunar valves.
C)mitral (bicuspid)valve.
D)AV node to signal contraction.
E)sinoatrial node to signal contraction.

A Heart Murmur Is a Distortion of the Heartbeat Due